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Old 14th February 2010, 07:33 PM   #211
cHoc is offline cHoc  Netherlands
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Quote:
Originally Posted by acidbrain View Post
A few things here for the archive.

1. I changed the 2sk170's for (SMD) BF862.
It gives a little bit more gain and clearer sound.
Did you match those?
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Old 14th February 2010, 09:29 PM   #212
juma is online now juma  Germany
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Quote:
Originally Posted by acidbrain View Post
....
1. I changed the 2sk170's for (SMD) BF862.
It gives a little bit more gain and clearer sound.
....
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Old 14th February 2010, 10:20 PM   #213
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I matched them only to have equal gain for both channels, not to have the same gain as the 2sk170 did. It worked fine.

quote Andrew T. :

The BL is a 6 to 12mA device the 862 is 10 to 25mA device.
Look at the BL 12mA example of transconductance. You will see they show 30 to 40mS from 5mA to 10mA Id.
Choosing a very high BL, or a low V grade, will give a similar range of Yfs, if you run them at similar high Id.
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Old 15th February 2010, 11:47 AM   #214
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It should be builded smaller ,i think so.
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Old 9th April 2010, 08:35 PM   #215
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Any boards left?
no kits
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Old 9th April 2010, 09:17 PM   #216
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Pearl Two
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Old 24th June 2010, 09:59 PM   #217
gotoma8 is offline gotoma8  United States
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anxiously awaiting the kit...
T
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Old 12th November 2012, 04:16 PM   #218
Sodejuu is offline Sodejuu  Netherlands
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Quote:
Originally Posted by promitheus View Post
Also there are 2 points on the board called Star1 and Star.
These 2 points need to be connected with a piece of wire.
This connects Audio Star Ground with ground plane.
Hello,

Sorry for my late reaction, but I got the complete kit just en few days ago and I'm building it now. What I don't get is why wasn't "Star" connected to "Star1" right away on the PCB? There is room for it?
Or is it an option to connect "Star1" to GND and leave "Star" connected to 0V?
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Old 12th November 2012, 06:32 PM   #219
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Originally Posted by Sodejuu View Post
Hello,

Sorry for my late reaction, but I got the complete kit just en few days ago and I'm building it now. What I don't get is why wasn't "Star" connected to "Star1" right away on the PCB? There is room for it?
Or is it an option to connect "Star1" to GND and leave "Star" connected to 0V?
What kit?

Russellc
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Old 13th November 2012, 11:32 AM   #220
Sodejuu is offline Sodejuu  Netherlands
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I got the complete kit a few days ago. That kit contains 2 mainboards, 2 MC pre boards and 2 PSU boards. This threat is about the MC pre boards, so that is also what my question is about. Once again, Why wasn't "Star" not connected to "Star1" when there is room on the PCB to do so?
Is it better to connect "Star1" to GND and leave "Star" connected to 0V (so not shorting 0V to GND via this connection)?
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